第4次作业类测试代码+149+肖雷
类图
代码部分
把额外的几个方法贴了上来
GetDay：
lastDay
1 //获得大月的前一天 2 public String getEvenYesterday(int m, int d, int y) { 3 boolean leapYear = isLeapYear(y); 4 String result = ""; 5 if(d < 1 || d > 31) { 6 result = "日期超出范围"; 7 } else { 8 if(m != 1 && m != 3){ 9 if(d == 1) { 10 result = y + "年" + (m-1) + "月30日"; 11 } else { 12 result = y + "年" + m + "月" + (d-1) + "日"; 13 } 14 } else { 15 switch(m) { 16 case 1: 17 result = (y-1) + "年12月31日"; 18 break; 19 case 3: 20 if(leapYear) { 21 result = y + "年" + (m-1) + "月29日"; 22 } else { 23 result = y + "年" + (m-1) + "月28日"; 24 } 25 break; 26 } 27 } 28 29 } 30 return result; 31 } 32 //获得小月的前一天 33 public String getOddYesterday(int m, int d, int y) { 34 String result = ""; 35 if(m != 2){ 36 if(d < 1 || d > 30) { 37 result = "日期超出范围"; 38 } else { 39 if(d == 1) { 40 result = y + "年" + (m-1) + "月31日"; 41 } else { 42 result = y + "年" + m + "月" + (d-1) + "日"; 43 } 44 } 45 } else if (m == 2 && isLeapYear(y)){ 46 if(d < 1 || d > 29) { 47 result = "日期超出范围"; 48 } else { 49 if(d == 1) { 50 result = y + "年" + (m-1) + "月31日"; 51 } else { 52 result = y + "年" + m + "月" + (d-1) + "日"; 53 } 54 } 55 } else { 56 if(d < 1 || d > 28) { 57 result = "日期超出范围"; 58 } else { 59 if(d == 1) { 60 result = y + "年" + (m-1) + "月31日"; 61 } else { 62 result = y + "年" + m + "月" + (d-1) + "日"; 63 } 64 } 65 } 66 67 return result; 68 } 69 //前一天判断 70 public String lastDay(int m, int d, int y) { 71 String result = ""; 72 if(y < 1912 || y > 2050) { 73 result = "年份超出范围"; 74 } else { 75 switch(m) { 76 case 1: 77 case 3: 78 case 5: 79 case 7: 80 case 8: 81 case 10: 82 case 12: 83 result = getEvenYesterday(m, d, y); 84 break; 85 case 2: 86 case 4: 87 case 6: 88 case 9: 89 case 11: 90 result = getOddYesterday(m, d, y); 91 break; 92 default: 93 result = "月份超出范围"; 94 break; 95 } 96 } 97 return result; 98 }
weekDay
1 //使用基姆拉尔森计算公式 2 //Week=(Day + 2*Month + 3*(Month+1）/5 + Year + Year/4 - Year/100 + Year/400) % 7 3 public int weekDay(int m, int d, int y) { 4 if(m == 1){ 5 m = 13; 6 y--; 7 } 8 if(m == 2){ 9 m = 14; 10 y--; 11 } 12 int week=(d + 2*m + 3*(m+1)/5 + y + y/4 - y/100 + y/400)%7; 13 14 return week; 15 } 16 //将获得的数字转成输出显示的字符串 17 public String todayWeek(int m, int d, int y) { 18 int week = weekDay(m, d, y); 19 String w = ""; 20 switch(week) { 21 case 0: 22 w = "一";break; 23 case 1: 24 w = "二";break; 25 case 2: 26 w = "三";break; 27 case 3: 28 w = "四";break; 29 case 4: 30 w = "五";break; 31 case 5: 32 w = "六";break; 33 case 6: 34 w = "日";break; 35 } 36 return w; 37 }
GraphicInterface：
这个类是用来绘制图形界面的，但是在事件处理中引用了GetDay中的方法，以便获得相应的信息，如前一天，后一天等
drawPicture
1 //绘制界面 2 public void drawPicture() { 3 JFrame frame = new JFrame("日期计算程序"); 4 frame.setLayout(null); 5 /*文字标签组*/ 6 JLabel title = new JLabel("请输入需要计算的年月日(1912-2050之间）"); 7 JLabel year = new JLabel("年："); 8 JLabel month = new JLabel("月："); 9 JLabel day = new JLabel("日："); 10 JLabel thisWeek = new JLabel("这一天是星期"); 11 JLabel nextDay = new JLabel("下一天是："); 12 JLabel prevDay = new JLabel("上一天是："); 13 /*文字输入区域组*/ 14 JTextField t_year = new JTextField(); 15 JTextField t_month = new JTextField(); 16 JTextField t_day = new JTextField(); 17 JTextField t_thisWeek = new JTextField(); 18 JTextField t_nextDay = new JTextField(); 19 JTextField t_prevDay = new JTextField(); 20 /*按钮组*/ 21 JButton submit = new JButton("确定"); 22 JButton cancel = new JButton("清空"); 23 24 //使用匿名匿名内部类为submit按钮添加监听事件 25 submit.addActionListener(new ActionListener() { 26 @Override 27 public void actionPerformed(ActionEvent e) { 28 //判断触发源是否为submit按钮 29 if(e.getSource() == submit) { 30 //得到输入的年，月，日，返回的是String 字符串类型 31 String y = t_year.getText(); 32 String m = t_month.getText(); 33 String d = t_day.getText(); 34 //把获得的字符串转成数字 35 int i_y = Integer.parseInt(y); 36 int i_m = Integer.parseInt(m); 37 int i_d = Integer.parseInt(d); 38 //输出后一天 39 String nextD = gd.nextDate(i_m, i_d, i_y); 40 t_nextDay.setText(nextD); 41 //输出前一天 42 String prevD = gd.lastDay(i_m, i_d, i_y); 43 t_prevDay.setText(prevD); 44 //输入出当前是星期几 45 String week = gd.todayWeek(i_m, i_d, i_y); 46 t_thisWeek.setText(week); 47 } 48 49 } 50 }); 51 //使用匿名匿名内部类为cancel按钮添加监听事件 52 cancel.addActionListener(new ActionListener() { 53 @Override 54 public void actionPerformed(ActionEvent e) { 55 //清空输入的数据 56 if(e.getSource() == cancel) { 57 t_year.setText(""); 58 t_month.setText(""); 59 t_day.setText(""); 60 } 61 62 } 63 }); 64 65 /*设置标签位置及大小*/ 66 Font ft = new Font("黑体",Font.BOLD,24);//设置显示字体 67 title.setFont(ft); 68 title.setBounds(62, 62, 500, 25); 69 year.setFont(ft); 70 year.setBounds(80, 124, 50, 25); 71 month.setFont(ft); 72 month.setBounds(230, 124, 50, 25); 73 day.setFont(ft); 74 day.setBounds(380, 124, 50, 25); 75 thisWeek.setFont(ft); 76 thisWeek.setBounds(62, 248, 200, 25); 77 prevDay.setFont(ft); 78 prevDay.setBounds(62, 372, 150, 25); 79 nextDay.setFont(ft); 80 nextDay.setBounds(62, 310, 150, 25); 81 /*设置文字位置及大小*/ 82 t_year.setBounds(130, 124, 50, 25); 83 t_month.setBounds(280, 124, 50, 25); 84 t_day.setBounds(430, 124, 50, 25); 85 t_thisWeek.setBounds(230, 248, 50, 25); 86 t_thisWeek.setFont(ft); 87 t_thisWeek.setEnabled(false);//设置为无法输入 88 t_nextDay.setBounds(180, 310, 200, 25); 89 t_nextDay.setFont(ft); 90 t_nextDay.setEnabled(false);//设置为无法输入 91 t_prevDay.setBounds(180, 372, 200, 25); 92 t_prevDay.setFont(ft); 93 t_prevDay.setEnabled(false);//设置为无法输入 94 /*设置按钮位置及大小*/ 95 submit.setBounds(180, 187, 62, 31); 96 cancel.setBounds(320, 187, 62, 31); 97 //把所有组件添加到frame中 98 frame.add(title);frame.add(year);frame.add(month);frame.add(day); 99 frame.add(thisWeek);frame.add(nextDay);frame.add(prevDay); 100 frame.add(t_year);frame.add(t_month);frame.add(t_day); 101 frame.add(t_thisWeek);frame.add(t_nextDay);frame.add(t_prevDay); 102 frame.add(submit);frame.add(cancel); 103 /*设置显示画布大小及显示的位置*/ 104 frame.setSize(600, 490); 105 frame.setLocation(300,300); 106 frame.setVisible(true); 107 108 }
结果：
